package com.pony.service;
import com.pony.entity.Yg;

import java.util.List;

public interface YgService {
    List<Yg> getAll();

    int delYg(int ygid);

    Yg getYgById(int ygid);

    int updateYg(Yg yg);

    int addYg(Yg yg);
}
